FFC工艺制备纳米硅的研究

he quartz is electrolyzed in molten CaCl 2 . Study the effect of different voltage, time and temperature on the product .XRD and SEM analysis show that Si can be produced by electrolysis under different conditions, but contains trace amounts of impurities.The results show that the silicon material is gradually nanometerized and its morphology is uniform when the electrolysis voltage is from 3.2V to 2.2V. According to the existing core-shell theory, the reduction mechanism of large voltage (3.2V) and low voltage (2.2V) is further proposed; The template-free hollow nanosilicon material and the hollow microsilicon material were prepared by controlling the electrolysis time and temperature.